IAA RAS IAA Minor Planet Database

285571 (2000 PQ9)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4324411214 ± 8.16e-10
Semi-major axis (a)1.9035657241 AU ± 5.85e-10
Inclination (i)13.48266244° ± 1.16e-06
Long. of Asc. Node (Ω)297.16245353° ± 7.40e-07
Arg. of Perihelion (ω)7.05697041° ± 3.81e-06
Mean Anomaly (M)231.96152491° ± 1.27e-06
Mean Motion (n)0.3752843568°/day ± 1.73e-10
Perihelion dist (q)1.08038563 AU ± 1.59e-09
Aphelion dist (Q)2.72674582 AU ± 1.76e-09
Orbital Period2.62634524 yr ± 1.21e-09
Physical Parameters
H (abs. magnitude)18.65
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.478″
Uncertainty0
Orbit TypeAmor
MOID0.064547 AU
Observations Used7147
Radar Obs Used1
Oppositions13
Arc Total2000-2021
First Observation Used2000-08-09
Last Observation Used2024-12-06
Observations (13272)
Date Type RA Dec Mag Band Observatory
2021-07-19 12:39:27 v 1 135.36081 +35.05973 – – 247
2021-07-19 12:40:07 V 19 42 37.17 -23 55 57.6 13.0 V 247
2021-07-19 12:40:07 v 1 135.36081 +35.05973 – – 247
2021-07-19 12:40:46 V 19 42 37.31 -23 55 51.3 13.0 V 247
2021-07-19 12:40:46 v 1 135.36081 +35.05973 – – 247
2021-07-19 12:41:26 V 19 42 37.44 -23 55 44.1 12.9 V 247
2021-07-19 12:41:26 v 1 135.36081 +35.05973 – – 247
2021-07-19 12:42:06 V 19 42 37.51 -23 55 38.1 12.9 V 247
2021-07-19 12:42:06 v 1 135.36081 +35.05973 – – 247
2021-07-19 12:42:45 V 19 42 37.66 -23 55 31.4 12.9 V 247
2021-07-19 12:42:45 v 1 135.36081 +35.05973 – – 247
2021-07-19 12:43:25 V 19 42 37.77 -23 55 24.8 13.0 V 247
2021-07-19 12:43:25 v 1 135.36081 +35.05973 – – 247
2021-07-19 12:44:05 V 19 42 37.90 -23 55 18.0 13.0 V 247
2021-07-19 12:44:05 v 1 135.36081 +35.05973 – – 247
2021-07-19 12:44:45 V 19 42 38.04 -23 55 11.7 12.9 V 247
2021-07-19 12:44:45 v 1 135.36081 +35.05973 – – 247
2021-07-19 12:45:24 V 19 42 38.13 -23 55 04.6 12.9 V 247
2021-07-19 12:45:24 v 1 135.36081 +35.05973 – – 247
2021-07-19 12:46:04 V 19 42 38.27 -23 54 58.3 13.0 V 247
2021-07-19 12:46:04 v 1 135.36081 +35.05973 – – 247
2021-07-19 12:46:44 V 19 42 38.39 -23 54 51.2 13.0 V 247
2021-07-19 12:46:44 v 1 135.36081 +35.05973 – – 247
2021-07-19 12:47:24 V 19 42 38.53 -23 54 44.6 13.0 V 247
2021-07-19 12:47:24 v 1 135.36081 +35.05973 – – 247
2021-07-19 12:48:03 V 19 42 38.65 -23 54 38.2 12.9 V 247
2021-07-19 12:48:03 v 1 135.36081 +35.05973 – – 247
2021-07-19 12:48:43 V 19 42 38.77 -23 54 31.2 13.1 V 247
2021-07-19 12:48:43 v 1 135.36081 +35.05973 – – 247
2021-07-19 12:49:23 V 19 42 38.89 -23 54 24.9 13.0 V 247
2021-07-19 12:49:23 v 1 135.36081 +35.05973 – – 247
2021-07-19 12:50:02 V 19 42 39.03 -23 54 17.8 13.1 V 247
2021-07-19 12:50:02 v 1 135.36081 +35.05973 – – 247
2021-07-19 12:50:42 V 19 42 39.16 -23 54 11.0 12.9 V 247
2021-07-19 12:50:42 v 1 135.36081 +35.05973 – – 247
2021-07-19 12:51:22 V 19 42 39.27 -23 54 04.4 13.0 V 247
2021-07-19 12:51:22 v 1 135.36081 +35.05973 – – 247
2021-07-19 12:52:01 V 19 42 39.40 -23 53 57.8 13.0 V 247
2021-07-19 12:52:01 v 1 135.36081 +35.05973 – – 247
2021-07-19 12:52:41 V 19 42 39.54 -23 53 50.3 12.9 V 247
2021-07-19 12:52:41 v 1 135.36081 +35.05973 – – 247
2021-07-19 12:53:07 C 19 42 39.02 -23 53 49.6 – q Q21
2021-07-19 12:53:21 V 19 42 39.67 -23 53 43.9 12.8 V 247
2021-07-19 12:53:21 v 1 135.36081 +35.05973 – – 247
2021-07-19 12:54:01 V 19 42 39.80 -23 53 37.4 12.9 V 247
2021-07-19 12:54:01 v 1 135.36081 +35.05973 – – 247
2021-07-19 12:54:40 V 19 42 39.90 -23 53 30.2 12.8 V 247
2021-07-19 12:54:40 v 1 135.36081 +35.05973 – – 247
2021-07-19 12:55:20 V 19 42 40.03 -23 53 23.9 13.0 V 247
2021-07-19 12:55:20 v 1 135.36081 +35.05973 – – 247
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2021-07-23 05:30:00 67479907 1 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)